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Is my site blocked in Poland?
Polish internet providers block domains in their DNS (the internet's address book, which turns a domain name into a server address), so visitors see a warning page instead of your site. Every provider must block the domains in the Finance Ministry's register of illegal gambling sites; Orange, Play, Plus and T-Mobile also block a list of phishing domains (fake pages that steal data or money) kept by the security team CERT Polska, and Orange adds its own filter. A legitimate site gets caught when criminals take it over or when it is flagged by mistake; you can search both lists, but only a test through each provider shows what its customers see.
Sources: Ministry of Finance, 28 March 2018 · Gambling Act of 19 November 2009 (consolidated text Dz.U. 2025 poz. 595), article 15f · CERT Polska, updated 2 September 2026 · CERT Polska FAQ, 23 March 2020, now marked historical · CERT Orange Polska, published 4 July 2022, updated 3 July 2026
Check your page in Poland now
We open it through home connections of Orange, T-Mobile, Play and Netia and mobile connections of Play and Plus, the way their customers would, and tell you provider by provider whether it opens. Free, about a minute, a few checks per hour.
Who has to block sites in the gambling register?
Every company that sells internet access in Poland. The Minister of Finance keeps a public register of domains that offer gambling against Polish law, at hazard.mf.gov.pl. It also lists domains that advertise or promote such gambling. Since 1 July 2017 providers must block a listed domain in their DNS within 48 hours of its listing and send visitors to a Ministry page that says "access to the site has been blocked". When a domain is taken off the register, they must unblock it within 48 hours. A provider that fails to block faces a fine of up to 250,000 złoty.
Sources: Ministry of Finance, 28 March 2018 · Gambling Act of 19 November 2009 (consolidated text Dz.U. 2025 poz. 595), articles 15f and 89 · register site, Act page and Ministry notice page, checked 11 November 2026
If your domain is listed by mistake, you can object to the Minister of Finance within two months of the entry; the minister decides within 14 days. Each entry is one exact name, so example.com and www.example.com are listed separately: search for every version of your address. You can search the register on its site or download it as a data file (XML) that a program can read.
Sources: Gambling Act of 19 November 2009 (consolidated text Dz.U. 2025 poz. 595), article 15f · register XML, checked 11 November 2026
Can a legitimate site end up on CERT Polska's warning list?
Yes: when criminals take it over, or by mistake. CERT Polska lists domains whose main purpose is to trick people out of data or money. Under a voluntary agreement from March 2020, Orange, Play, Plus and T-Mobile block them, and other providers may join. Their DNS points the domain to a warning page, CERT Polska's or the provider's own. Quad9 and NextDNS, two DNS services that people can pick instead of their provider's, use the list too. Entries stay six months. CERT Polska tells providers to block a listed name and every longer name built on it: if shop.example.com is listed, www.shop.example.com is blocked too, but example.com is not.
Sources: CERT Polska, updated 2 September 2026 · CERT Polska, warning list page, checked 11 November 2026
An older CERT Polska FAQ, from 2020, named a site taken over by criminals as one way an honest site gets blocked, and said .pl domain owners got no warning before a block. It asked owners to email the team and said that how soon the domain works again depends on the providers. The formal route is an objection from the domain holder to the head of UKE, Poland's telecom regulator. It must be signed electronically, with a qualified electronic signature (a certified digital signature) or a Polish government e-ID (trusted profile or e-ID card), and sent to UKE's official electronic mailbox; otherwise UKE does not consider it. A plain email is not enough. UKE decides within 14 days; if it agrees, CERT Polska must remove the entry within 3 days. A refusal can be challenged in an administrative court.
Sources: CERT Polska FAQ, 23 March 2020, now marked historical · Act of 28 July 2023 on combating abuse in electronic communications (consolidated text Dz.U. 2024 poz. 1803), articles 21 and 22
Does Orange block more than the official lists?
Yes. Orange's CyberTarcza ("cyber shield") is a filter inside Orange's network: it changes DNS answers for blocked domains and redirects connections to blocked server addresses. Orange says it blocked 345,000 phishing domains in 2025 and stopped almost 5.5 million people from opening them. Customers cannot switch it off, though Orange says those who use another DNS service or a VPN (a service that routes traffic through its own servers) get around it. If your site uses https (the padlock in the browser), an Orange customer who hits the block sees a certificate warning. The certificate, a site's proof of identity, is Orange's, not yours. To that visitor, your site looks broken.
Sources: Orange Polska, 31 March 2026 · CERT Orange Polska, published 4 July 2022, updated 3 July 2026
Orange says it sometimes blocks a site by mistake; you can report one to cert.opl@orange.com, a mailbox its security team watches around the clock. Why a warning page costs you visitors: red warnings and lost visitors.
Source: CERT Orange Polska, published 4 July 2022, updated 3 July 2026
What would the new blocking law change?
On 8 October 2026 the Sejm, the lower house of parliament, passed a law on blocking illegal content. It would let the head of UKE, the chair of the broadcasting council KRRiT and the courts order such content blocked. It covers, for example, fraud, copyright infringement, counterfeit goods, hate speech and child sexual abuse material. If an order against the content does not work, for example because the site exists mainly to spread illegal content or its host ignores the order, the whole domain can go into a register kept by the head of UKE. Providers then have 48 hours to block it in their DNS and send visitors to a UKE notice page.
Sources: Niebezpiecznik, 11 October 2026 · Legalis via lex.media.pl (aggregator), October 2026 · PAP via Portal Samorządowy, 5 November 2026 · Polsat News, 10 November 2026
Unlike the two lists above, this register would be exempt from Poland's freedom-of-information law. According to Infor.pl, the Supreme Court warned in July 2026 that the bill carries a high risk of blocking legal sites and speech. As of 11 November 2026, President Karol Nawrocki had until 13 November 2026 to sign the law, veto it or send it to the Constitutional Tribunal. He vetoed an earlier version on 9 January 2026.
Sources: Infor.pl, 17 October 2026 · PAP via Portal Samorządowy, 5 November 2026 · Polsat News, 10 November 2026
How can I check my site myself?
Search your domain in the gambling register and in CERT Polska's list, which you can download as plain text. In CERT Polska's list, a listed name also blocks every longer name built on it, so if your address is shop.example.com, search for example.com too. Orange's domain checker shows whether a domain is blocked on Orange's network, and lista.cert.pl tests whether the connection you are on uses CERT Polska's list. A list shows what should be blocked, not what each visitor sees. Someone who has switched to Google's DNS service (8.8.8.8) may still open a site on CERT Polska's list, while someone using Quad9, which also uses the list, is likely blocked whatever their provider does.
Sources: CERT Polska, warning list page, lista.cert.pl and CERT Orange Polska domain checker, checked 11 November 2026 · CERT Polska FAQ, 23 March 2020, now marked historical
What does linkspect check in Poland?
We open your URL through the home broadband connections of Orange, Play, Netia and T-Mobile customers and the mobile connections of Play and Plus customers. You can also include Orange and T-Mobile mobile in a check: we measure them when we have a suitable test connection at the time, and otherwise that answer says "not measured" and is free. Next to each provider's answer we show whether your domain is in the gambling register. On mobile networks we report a block in the DNS as "likely" at most, never as certain.
Facts checked on 11 November 2026.